Updated version:
1. The problem with previous version is that in rangebound day, it may generate whipsaws.
2. The updated version has single line with three colors:
a) Grey line - trend may change, wait until clear trend emerges. (I avoid trading when line is grey)
b) Blue line - uptrend. Slope is up - upside momentum is gaining strength. Slope is down - upside momentum is loosing strength
c) Red line - downtrend. Slope is down - downside momentum is gaining strength. Slope is up - downside momentum is loosing strength
3. Updated specifically for intraday.